WAEC Chemistry 2014 Objective — Question 27
Question 27 of 50 from the West African Examinations Council (WAEC) Chemistry 2014 Objective paper, with the correct answer and a full explanation.
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The gases produced when Cu(NO₃)₂(s) was heated are
- A. NO and NO₂
- B. O₂ and NO₂Correct
- C. O₂ and NO
- D. NO₂ and N₂O₄
Explanation
When Cu(NO3)2 is heated, the gases produced are NO2 and O2: 2Cu(NO3)2 → 2CuO + 4NO2 + O2.
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